From b26e2ae7d333d84a85daaa9ca699c8bae2bd05bc Mon Sep 17 00:00:00 2001 From: "Jose E. Marchesi" Date: Tue, 4 Aug 2020 18:09:16 +0200 Subject: sim: eBPF simulator This patch introduces the basics of an instruction-simulator for eBPF. The simulator is based on CGEN. gdb/ChangeLog: 2020-08-04 Jose E. Marchesi * configure.tgt: Set gdb_sim for bpf-*-* targets. sim/ChangeLog: 2020-08-04 Jose E. Marchesi David Faust * configure.tgt (sim_arch): Add entry for bpf-*-*. * configure: Regenerate. * MAINTAINERS: Add maintainer for the BPF simulator. * bpf/Makefile.in: New file. * bpf/bpf-helpers.c: Likewise. * bpf/bpf-helpers.def: Likewise. * bpf/bpf-helpers.h: Likewise. * bpf/bpf-sim.h: Likewise. * bpf/bpf.c: Likewise. * bpf/config.in: Likewise. * bpf/configure.ac: Likewise. * bpf/decode.h: Likewise. * bpf/eng.h: Likewise. * bpf/mloop.in: Likewise. * bpf/sim-if.c: Likewise. * bpf/sim-main.h: Likewise. * bpf/traps.c: Likewise. * bpf/configure: Generate. * bpf/aclocal.m4: Likewise. sim/testsuite/ChangeLog: 2020-08-04 David Faust Jose E. Marchesi * configure: Regenerate. * sim/bpf/allinsn.exp: New file. * sim/bpf/alu.s: Likewise. * sim/bpf/alu32.s: Likewise. * sim/bpf/endbe.s: Likewise. * sim/bpf/endle.s: Likewise. * sim/bpf/jmp.s: Likewise. * sim/bpf/jmp32.s: Likewise. * sim/bpf/ldabs.s: Likewise. * sim/bpf/mem.s: Likewise. * sim/bpf/mov.s: Likewise. * sim/bpf/testutils.inc: Likewise. * sim/bpf/xadd.s: Likewise. --- gdb/ChangeLog | 4 ++++ gdb/configure.tgt | 1 + 2 files changed, 5 insertions(+) (limited to 'gdb') diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 3199a26..175d281 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2020-08-04 Jose E. Marchesi + + * configure.tgt: Set gdb_sim for bpf-*-* targets. + 2020-08-04 Weimin Pan Jose E. Marchesi diff --git a/gdb/configure.tgt b/gdb/configure.tgt index 7e84eff..8a26bde 100644 --- a/gdb/configure.tgt +++ b/gdb/configure.tgt @@ -208,6 +208,7 @@ bfin-*-*) bpf-*-*) # Target: eBPF gdb_target_obs="bpf-tdep.o" + gdb_sim=../sim/bpf/libsim.a ;; cris*) -- cgit v1.1